Report on 9mm Largo ammunition:
The ammunition was tested on March 26, 2000 in Harmony, ME, at Surplus International LLC’s facility. Information was gathered by Dan Shea, Technical Editor of Small Arms Review. Chronograph was a DillonMillenium.
9mm Largo Manufactured in Spain by Empressa Nacional Santa Barbara.
Case Length….…. 9 x 23mm
Bullet weight……. 127 gr.
Cartridge weight.. 200 gr.
Powder type…….. flake (Military)
Powder weight….. 6.0 gr.
All cartridge’s tested out satisfactory. Test firearms were: 1921 Astra 5.5"bbl, Star Super 5.25" bbl, Destroyer Carbine 17" bbl, and Star Z-45 submachinegun 7.75" bbl.
1962 dated boxes: included some 1961 dated cartridge cases, but were primarily 1962.This ammunition used corrosive Berdan primers and will require cleaning of the firearmsafter use with a cleaner that counteracts the corrosive chemicals. Packaged 25 per cdbdbox, 1000 rds per sealed steel can in wood cs.
1969 dated boxes: cartridges are 1966 to69 dated, and were non-corrosive, using Berdanprimers. This ammunition was the most consistent on the chronograph, and the mostaccurate. Packaged 25 per cdbd box, 1000 rds per sealed steel can in wood cs.
1977 dated boxes: cartridge cases are mid 1970s dated, mostly 1977. The boxes aremarked "No corrosivo, no erosivo" and the cartridges are non corrosive, Berdanprimed. Packaged 25 per cdbd box, 2000 rds per sealed steel can inwood cs.
AmmoDate Firearm mean avg fps 5 shot Hi/low spread
1962 1921 Astra 1110 fps 1097-1128 fps 31 fps
1962 Star Super 1084 fps 1055-1134 fps 79 fps
1962 Destroyer 1249 fps 1238-1267 fps 29 fps
1962 Z-45 SMG 1137 fps 1103-1172 fps 69 fps
1969 1921 Astra 1167 fps 1153-1188 fps 35 fps
1969 Star Super 1170 fps 1163-1181 fps 18 fps
1969 Destroyer 1243 fps 1231-1293 fps 62 fps
1969 Z-45 SMG 1199 fps 1177-1224 fps 47 fps
1977 1921 Astra 1133 fps 1105-1161 fps 56 fps
1977 Star Super 1147 fps 1134-1162 fps 28 fps
1977 Destroyer 1240 fps 1198-1270 fps 72 fps
1977 Z-45 SMG 1167 fps 1139-1197 fps 58 fps